Home / 111,542.64-153,907.22-63,785.86

Finding the Fourth Proportional to 111,542.64, 153,907.22 and 63,785.86

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Solution

The fourth proportional to 111,542.64, 153,907.22 and 63,785.86 is: 88,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,542.64 : 153,907.22 = 63,785.86 : x
  2. Step 2: Convert to fraction form
    111,542.64/153,907.22 = 63,785.86/x
  3. Step 3: Cross multiply
    111,542.64x = 153,907.22 × 63,785.86
  4. Step 4: Simplify right side
    111,542.64x = 9,817,104,387.91
  5. Step 5: Solve for x
    x = 9,817,104,387.91/111,542.64
  6. Step 6: Final answer
    x = 88,012.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.